Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 1 11.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/11/2022   19:35:29   ( -70.94,  65.71) 01/11/2022   19:36:40  ( -70.89,  66.03)   13.15                71
 01/11/2022   20:26:11   (  70.72,-126.61) 01/11/2022   20:26:08  (  70.73,-126.56)    2.21                 3
 01/11/2022   21:16:52   ( -70.50,  41.06) 01/11/2022   21:15:39  ( -70.56,  40.81)   11.23                73
 01/14/2022   11:02:36   (  70.82,  14.14) 01/14/2022   11:03:36  (  70.84,  14.21)    3.46                60
 01/14/2022   11:53:19   ( -70.70,-178.35) 01/14/2022   11:53:06  ( -70.73,-178.33)    2.83                13
 01/14/2022   12:43:52   (  70.01,  -9.94) 01/14/2022   12:42:43  (  70.07, -11.64)   65.00                69
 01/17/2022   02:29:45   ( -70.80, -37.59) 01/17/2022   02:30:36  ( -70.78, -37.64)    3.00                51
 01/17/2022   03:20:29   (  70.69, 129.90) 01/17/2022   03:20:03  (  70.67, 129.84)    3.11                26
 01/19/2022   17:56:55   (  70.80, -89.35) 01/19/2022   17:57:32  (  70.77, -89.41)    3.30                37
 01/19/2022   18:47:39   ( -70.72,  78.08) 01/19/2022   18:47:01  ( -70.72,  78.14)    2.49                38
 01/22/2022   09:24:05   ( -70.83,-141.18) 01/22/2022   09:24:30  ( -70.81,-141.10)    3.05                25
 01/22/2022   10:14:49   (  70.72,  26.31) 01/22/2022   10:13:57  (  70.70,  26.37)    3.12                52
 01/25/2022   00:00:41   ( -71.50,  -1.43) 01/25/2022   00:01:49  ( -71.39,   0.41)   66.32                68
 01/25/2022   00:51:13   (  70.78, 167.14) 01/25/2022   00:51:25  (  70.79, 167.11)    1.72                12
 01/25/2022   01:41:57   ( -70.70, -25.43) 01/25/2022   01:40:55  ( -70.68, -25.42)    2.12                62